Improper input validation in Umbraco Umbraco_forms
CVE-2025-23041
Umbraco.Forms is a web form framework written for the nuget ecosystem. Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. This issue has been patched in versions 8.13.16…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.004 (28.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
Affected products
- Umbraco Umbraco_forms
- Umbraco Umbraco.forms.issues — versions < 8.13.16, >= 10.0.0, < 10.5.7, >= 11.0.0, < 13.2.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-23041?
- CVE-2025-23041 is a medium-severity vulnerability in Umbraco Umbraco_forms, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2025-01-14.
- How severe is CVE-2025-23041?
- Medium severity. CVSS v3 base score is 5.8 out of 10.
- Is CVE-2025-23041 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.